1 /* 2 * Copyright (c) 1983, 1988, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)inet.c 8.5 (Berkeley) 5/24/95 34 * $FreeBSD: src/usr.bin/netstat/inet.c,v 1.37.2.11 2003/11/27 14:46:49 ru Exp $ 35 */ 36 37 #include <sys/param.h> 38 #include <sys/queue.h> 39 #include <sys/socket.h> 40 #include <sys/socketvar.h> 41 #include <sys/sysctl.h> 42 #include <sys/protosw.h> 43 #include <sys/time.h> 44 45 #include <net/route.h> 46 #include <netinet/in.h> 47 #include <netinet/in_systm.h> 48 #include <netinet/ip.h> 49 #include <netinet/ip_carp.h> 50 #ifdef INET6 51 #include <netinet/ip6.h> 52 #endif /* INET6 */ 53 #include <netinet/in_pcb.h> 54 #include <netinet/ip_icmp.h> 55 #include <netinet/icmp_var.h> 56 #include <netinet/igmp_var.h> 57 #include <netinet/ip_var.h> 58 #include <netinet/pim_var.h> 59 #include <netinet/tcp.h> 60 #include <netinet/tcpip.h> 61 #include <netinet/tcp_seq.h> 62 #define TCPSTATES 63 #include <netinet/tcp_fsm.h> 64 #include <netinet/tcp_timer.h> 65 #include <netinet/tcp_var.h> 66 #include <netinet/tcp_debug.h> 67 #include <netinet/udp.h> 68 #include <netinet/udp_var.h> 69 70 #include <arpa/inet.h> 71 #include <err.h> 72 #include <errno.h> 73 #include <libutil.h> 74 #include <netdb.h> 75 #include <stdio.h> 76 #include <stdlib.h> 77 #include <string.h> 78 #include <unistd.h> 79 #include "netstat.h" 80 81 char *inetname (struct in_addr *); 82 void inetprint (struct in_addr *, int, const char *, int); 83 #ifdef INET6 84 extern void inet6print (struct in6_addr *, int, const char *, int); 85 static int udp_done, tcp_done; 86 #endif /* INET6 */ 87 88 /* 89 * Print a summary of connections related to an Internet 90 * protocol. For TCP, also give state of connection. 91 * Listening processes (aflag) are suppressed unless the 92 * -a (all) flag is specified. 93 */ 94 95 static int ppr_first = 1; 96 static void outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp); 97 98 void 99 protopr(u_long proto, const char *name, int af1 __unused) 100 { 101 int istcp; 102 void *buf; 103 const char *mibvar; 104 size_t i, len; 105 106 istcp = 0; 107 switch (proto) { 108 case IPPROTO_TCP: 109 #ifdef INET6 110 if (tcp_done != 0) 111 return; 112 else 113 tcp_done = 1; 114 #endif 115 istcp = 1; 116 mibvar = "net.inet.tcp.pcblist"; 117 break; 118 case IPPROTO_UDP: 119 #ifdef INET6 120 if (udp_done != 0) 121 return; 122 else 123 udp_done = 1; 124 #endif 125 mibvar = "net.inet.udp.pcblist"; 126 break; 127 case IPPROTO_DIVERT: 128 mibvar = "net.inet.divert.pcblist"; 129 break; 130 default: 131 mibvar = "net.inet.raw.pcblist"; 132 break; 133 } 134 len = 0; 135 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 136 if (errno != ENOENT) 137 warn("sysctl: %s", mibvar); 138 return; 139 } 140 if (len == 0) 141 return; 142 if ((buf = malloc(len)) == NULL) { 143 warn("malloc %lu bytes", (u_long)len); 144 return; 145 } 146 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 147 warn("sysctl: %s", mibvar); 148 free(buf); 149 return; 150 } 151 152 if (istcp) { 153 struct xtcpcb *tcp = buf; 154 len /= sizeof(*tcp); 155 for (i = 0; i < len; i++) { 156 if (tcp[i].xt_len != sizeof(*tcp)) 157 break; 158 outputpcb(proto, name, &tcp[i].xt_inp, 159 &tcp[i].xt_socket, &tcp[i].xt_tp); 160 } 161 } else { 162 struct xinpcb *in = buf; 163 len /= sizeof(*in); 164 for (i = 0; i < len; i++) { 165 if (in[i].xi_len != sizeof(*in)) 166 break; 167 outputpcb(proto, name, &in[i].xi_inp, 168 &in[i].xi_socket, NULL); 169 } 170 } 171 free(buf); 172 } 173 174 static void 175 outputpcb(int proto, const char *name, struct inpcb *inp, struct xsocket *so, struct tcpcb *tp) 176 { 177 const char *vchar; 178 static struct clockinfo clockinfo; 179 180 if (clockinfo.hz == 0) { 181 size_t size = sizeof(clockinfo); 182 sysctlbyname("kern.clockrate", &clockinfo, &size, NULL, 0); 183 if (clockinfo.hz == 0) 184 clockinfo.hz = 100; 185 } 186 187 /* Ignore sockets for protocols other than the desired one. */ 188 if (so->xso_protocol != (int)proto) 189 return; 190 191 if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0) 192 #ifdef INET6 193 || (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0) 194 #endif /* INET6 */ 195 || (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0 196 #ifdef INET6 197 && (inp->inp_vflag & INP_IPV6) == 0 198 #endif /* INET6 */ 199 )) 200 ) { 201 return; 202 } 203 if (!aflag && ( 204 (proto == IPPROTO_TCP && tp->t_state == TCPS_LISTEN) || 205 (af == AF_INET && inet_lnaof(inp->inp_laddr) == INADDR_ANY) 206 #ifdef INET6 207 || (af == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 208 #endif /* INET6 */ 209 || (af == AF_UNSPEC && (((inp->inp_vflag & INP_IPV4) != 0 && 210 inet_lnaof(inp->inp_laddr) == INADDR_ANY) 211 #ifdef INET6 212 || ((inp->inp_vflag & INP_IPV6) != 0 && 213 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) 214 #endif 215 )) 216 )) { 217 return; 218 } 219 220 if (ppr_first) { 221 if (!Lflag) { 222 printf("Active Internet connections"); 223 if (aflag) 224 printf(" (including servers)"); 225 } else { 226 printf("Current listen queue sizes " 227 "(qlen/incqlen/maxqlen)"); 228 } 229 putchar('\n'); 230 if (Aflag) 231 printf("%-8.8s ", "Socket"); 232 if (Pflag) 233 printf("%8.8s %8.8s %8.8s ", "TxWin", "Unacked", "RTT/ms"); 234 if (Lflag) { 235 printf("%-5.5s %-14.14s %-22.22s\n", 236 "Proto", "Listen", "Local Address"); 237 } else { 238 printf((Aflag && !Wflag) ? 239 "%-5.5s %-6.6s %-6.6s %-17.17s %-17.17s %s\n" : 240 "%-5.5s %-6.6s %-6.6s %-21.21s %-21.21s %s\n", 241 "Proto", "Recv-Q", "Send-Q", 242 "Local Address", "Foreign Address", 243 "(state)"); 244 } 245 ppr_first = 0; 246 } 247 if (Lflag && so->so_qlimit == 0) 248 return; 249 if (Aflag) { 250 if (tp) 251 printf("%8lx ", (u_long)inp->inp_ppcb); 252 else 253 printf("%8lx ", (u_long)so->so_pcb); 254 } 255 if (Pflag) { 256 if (tp) { 257 int window = MIN(tp->snd_cwnd, tp->snd_bwnd); 258 if (window == 1073725440) 259 printf("%8s ", "max"); 260 else 261 printf("%8d ", (int)MIN(tp->snd_cwnd, tp->snd_bwnd)); 262 printf("%8d ", (int)(tp->snd_max - tp->snd_una)); 263 if (tp->t_srtt == 0) 264 printf("%8s ", "-"); 265 else 266 printf("%8.3f ", (double)tp->t_srtt * 1000.0 / TCP_RTT_SCALE / clockinfo.hz); 267 } else { 268 printf("%8s %8s %8s ", "-", "-", "-"); 269 } 270 } 271 #ifdef INET6 272 if ((inp->inp_vflag & INP_IPV6) != 0) 273 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "46" : "6 "; 274 else 275 #endif 276 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ? "4 " : " "; 277 278 printf("%-3.3s%-2.2s ", name, vchar); 279 if (Lflag) { 280 char buf[15]; 281 282 snprintf(buf, sizeof(buf), "%d/%d/%d", so->so_qlen, 283 so->so_incqlen, so->so_qlimit); 284 printf("%-13.13s ", buf); 285 } else if (Bflag) { 286 printf("%6ld %6ld ", 287 so->so_rcv.sb_hiwat, 288 so->so_snd.sb_hiwat); 289 } else { 290 printf("%6ld %6ld ", 291 so->so_rcv.sb_cc, 292 so->so_snd.sb_cc); 293 } 294 if (numeric_port) { 295 if (inp->inp_vflag & INP_IPV4) { 296 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 297 name, 1); 298 if (!Lflag) 299 inetprint(&inp->inp_faddr, 300 (int)inp->inp_fport, name, 1); 301 } 302 #ifdef INET6 303 else if (inp->inp_vflag & INP_IPV6) { 304 inet6print(&inp->in6p_laddr, 305 (int)inp->inp_lport, name, 1); 306 if (!Lflag) 307 inet6print(&inp->in6p_faddr, 308 (int)inp->inp_fport, name, 1); 309 } /* else nothing printed now */ 310 #endif /* INET6 */ 311 } else if (inp->inp_flags & INP_ANONPORT) { 312 if (inp->inp_vflag & INP_IPV4) { 313 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 314 name, 1); 315 if (!Lflag) 316 inetprint(&inp->inp_faddr, 317 (int)inp->inp_fport, name, 0); 318 } 319 #ifdef INET6 320 else if (inp->inp_vflag & INP_IPV6) { 321 inet6print(&inp->in6p_laddr, 322 (int)inp->inp_lport, name, 1); 323 if (!Lflag) 324 inet6print(&inp->in6p_faddr, 325 (int)inp->inp_fport, name, 0); 326 } /* else nothing printed now */ 327 #endif /* INET6 */ 328 } else { 329 if (inp->inp_vflag & INP_IPV4) { 330 inetprint(&inp->inp_laddr, (int)inp->inp_lport, 331 name, 0); 332 if (!Lflag) 333 inetprint(&inp->inp_faddr, 334 (int)inp->inp_fport, name, 335 inp->inp_lport != 336 inp->inp_fport); 337 } 338 #ifdef INET6 339 else if (inp->inp_vflag & INP_IPV6) { 340 inet6print(&inp->in6p_laddr, 341 (int)inp->inp_lport, name, 0); 342 if (!Lflag) 343 inet6print(&inp->in6p_faddr, 344 (int)inp->inp_fport, name, 345 inp->inp_lport != 346 inp->inp_fport); 347 } /* else nothing printed now */ 348 #endif /* INET6 */ 349 } 350 if (tp && !Lflag) { 351 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES) 352 printf("%d", tp->t_state); 353 else { 354 printf("%s", tcpstates[tp->t_state]); 355 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN) 356 /* Show T/TCP `hidden state' */ 357 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN)) 358 putchar('*'); 359 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */ 360 } 361 } 362 putchar('\n'); 363 } 364 365 366 367 #define CPU_STATS_FUNC(proto,type) \ 368 static void \ 369 proto ##_stats_agg(type *ary, type *ttl, int cpucnt) \ 370 { \ 371 int i, off, siz; \ 372 siz = sizeof(type); \ 373 \ 374 if (!ary && !ttl) \ 375 return; \ 376 \ 377 bzero(ttl, siz); \ 378 if (cpucnt == 1) { \ 379 *ttl = ary[0]; \ 380 } else { \ 381 for (i = 0; i < cpucnt; ++i) { \ 382 for (off = 0; off < siz; off += sizeof(u_long)) { \ 383 *(u_long *)((char *)(*(&ttl)) + off) += \ 384 *(u_long *)((char *)&ary[i] + off); \ 385 } \ 386 } \ 387 } \ 388 } 389 CPU_STATS_FUNC(tcp, struct tcp_stats); 390 CPU_STATS_FUNC(ip, struct ip_stats); 391 392 /* 393 * Dump TCP statistics structure. 394 */ 395 void 396 tcp_stats(u_long off __unused, const char *name, int af1 __unused) 397 { 398 struct tcp_stats tcpstat, *stattmp; 399 struct tcp_stats zerostat[SMP_MAXCPU]; 400 size_t len = sizeof(struct tcp_stats) * SMP_MAXCPU; 401 int cpucnt; 402 403 if (zflag) 404 memset(zerostat, 0, len); 405 406 if ((stattmp = malloc(len)) == NULL) { 407 return; 408 } else { 409 if (sysctlbyname("net.inet.tcp.stats", stattmp, &len, 410 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 411 warn("sysctl: net.inet.tcp.stats"); 412 free(stattmp); 413 return; 414 } else { 415 if ((stattmp = realloc(stattmp, len)) == NULL) { 416 warn("tcp_stats"); 417 return; 418 } 419 } 420 } 421 cpucnt = len / sizeof(struct tcp_stats); 422 tcp_stats_agg(stattmp, &tcpstat, cpucnt); 423 424 #ifdef INET6 425 if (tcp_done != 0) 426 return; 427 else 428 tcp_done = 1; 429 #endif 430 431 printf ("%s:\n", name); 432 433 #define p(f, m) if (tcpstat.f || sflag <= 1) \ 434 printf(m, tcpstat.f, plural(tcpstat.f)) 435 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \ 436 printf(m, tcpstat.f) 437 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 438 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2)) 439 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \ 440 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2) 441 #define p3(f, m) if (tcpstat.f || sflag <= 1) \ 442 printf(m, tcpstat.f, plurales(tcpstat.f)) 443 444 p(tcps_sndtotal, "\t%lu packet%s sent\n"); 445 p2(tcps_sndpack,tcps_sndbyte, 446 "\t\t%lu data packet%s (%lu byte%s)\n"); 447 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, 448 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n"); 449 p2a(tcps_sndfastrexmit, tcps_sndearlyrexmit, 450 "\t\t%lu Fast Retransmit%s (%lu early)\n"); 451 p(tcps_sndlimited, "\t\t%lu packet%s sent by Limited Transmit\n"); 452 p(tcps_sndrtobad, "\t\t%lu spurious RTO retransmit%s\n"); 453 p2a(tcps_sndfastrexmitbad, tcps_sndearlyrexmitbad, 454 "\t\t%lu spurious Fast Retransmit%s (%lu early)\n"); 455 p(tcps_eifeldetected, "\t\t%lu Eifel-detected spurious retransmit%s\n"); 456 p(tcps_rttdetected, "\t\t%lu RTT-detected spurious retransmit%s\n"); 457 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n"); 458 p2a(tcps_sndacks, tcps_delack, 459 "\t\t%lu ack-only packet%s (%lu delayed)\n"); 460 p(tcps_sndurg, "\t\t%lu URG only packet%s\n"); 461 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n"); 462 p(tcps_sndwinup, "\t\t%lu window update packet%s\n"); 463 p(tcps_sndctrl, "\t\t%lu control packet%s\n"); 464 p(tcps_rcvtotal, "\t%lu packet%s received\n"); 465 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%lu ack%s (for %lu byte%s)\n"); 466 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n"); 467 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n"); 468 p2(tcps_rcvpack, tcps_rcvbyte, 469 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n"); 470 p2(tcps_rcvduppack, tcps_rcvdupbyte, 471 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n"); 472 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n"); 473 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, 474 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n"); 475 p2(tcps_rcvoopack, tcps_rcvoobyte, 476 "\t\t%lu out-of-order packet%s (%lu byte%s)\n"); 477 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, 478 "\t\t%lu packet%s (%lu byte%s) of data after window\n"); 479 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n"); 480 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n"); 481 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n"); 482 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n"); 483 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n"); 484 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n"); 485 p(tcps_connattempt, "\t%lu connection request%s\n"); 486 p(tcps_accepts, "\t%lu connection accept%s\n"); 487 p(tcps_badsyn, "\t%lu bad connection attempt%s\n"); 488 p(tcps_listendrop, "\t%lu listen queue overflow%s\n"); 489 p(tcps_connects, "\t%lu connection%s established (including accepts)\n"); 490 p2(tcps_closed, tcps_drops, 491 "\t%lu connection%s closed (including %lu drop%s)\n"); 492 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n"); 493 p(tcps_cachedrttvar, 494 "\t\t%lu connection%s updated cached RTT variance on close\n"); 495 p(tcps_cachedssthresh, 496 "\t\t%lu connection%s updated cached ssthresh on close\n"); 497 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n"); 498 p2(tcps_rttupdated, tcps_segstimed, 499 "\t%lu segment%s updated rtt (of %lu attempt%s)\n"); 500 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n"); 501 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n"); 502 p(tcps_persisttimeo, "\t%lu persist timeout%s\n"); 503 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n"); 504 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n"); 505 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n"); 506 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n"); 507 p(tcps_predack, "\t%lu correct ACK header prediction%s\n"); 508 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n"); 509 510 p1a(tcps_sc_added, "\t%lu syncache entries added\n"); 511 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n"); 512 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n"); 513 p1a(tcps_sc_dropped, "\t\t%lu dropped\n"); 514 p1a(tcps_sc_completed, "\t\t%lu completed\n"); 515 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n"); 516 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n"); 517 p1a(tcps_sc_reset, "\t\t%lu reset\n"); 518 p1a(tcps_sc_stale, "\t\t%lu stale\n"); 519 p1a(tcps_sc_aborted, "\t\t%lu aborted\n"); 520 p1a(tcps_sc_badack, "\t\t%lu badack\n"); 521 p1a(tcps_sc_unreach, "\t\t%lu unreach\n"); 522 p1a(tcps_sc_zonefail, "\t\t%lu zone failures\n"); 523 p1a(tcps_sc_sendcookie, "\t%lu cookies sent\n"); 524 p1a(tcps_sc_recvcookie, "\t%lu cookies received\n"); 525 free(stattmp); 526 #undef p 527 #undef p1a 528 #undef p2 529 #undef p2a 530 #undef p3 531 } 532 533 /* 534 * Dump UDP statistics structure. 535 */ 536 void 537 udp_stats(u_long off __unused, const char *name, int af1 __unused) 538 { 539 struct udpstat udpstat, zerostat; 540 size_t len = sizeof udpstat; 541 u_long delivered; 542 543 if (zflag) 544 memset(&zerostat, 0, len); 545 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 546 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 547 warn("sysctl: net.inet.udp.stats"); 548 return; 549 } 550 551 #ifdef INET6 552 if (udp_done != 0) 553 return; 554 else 555 udp_done = 1; 556 #endif 557 558 printf("%s:\n", name); 559 #define p(f, m) if (udpstat.f || sflag <= 1) \ 560 printf(m, udpstat.f, plural(udpstat.f)) 561 #define p1a(f, m) if (udpstat.f || sflag <= 1) \ 562 printf(m, udpstat.f) 563 p(udps_ipackets, "\t%lu datagram%s received\n"); 564 p1a(udps_hdrops, "\t%lu with incomplete header\n"); 565 p1a(udps_badlen, "\t%lu with bad data length field\n"); 566 p1a(udps_badsum, "\t%lu with bad checksum\n"); 567 p1a(udps_nosum, "\t%lu with no checksum\n"); 568 p1a(udps_noport, "\t%lu dropped due to no socket\n"); 569 p(udps_noportbcast, 570 "\t%lu broadcast/multicast datagram%s dropped due to no socket\n"); 571 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n"); 572 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n"); 573 delivered = udpstat.udps_ipackets - 574 udpstat.udps_hdrops - 575 udpstat.udps_badlen - 576 udpstat.udps_badsum - 577 udpstat.udps_noport - 578 udpstat.udps_noportbcast - 579 udpstat.udps_fullsock; 580 if (delivered || sflag <= 1) 581 printf("\t%lu delivered\n", delivered); 582 p(udps_opackets, "\t%lu datagram%s output\n"); 583 #undef p 584 #undef p1a 585 } 586 587 /* 588 * Dump CARP statistics structure. 589 */ 590 void 591 carp_stats(u_long off __unused, const char *name, int af1 __unused) 592 { 593 struct carpstats carpstat, zerostat; 594 size_t len = sizeof(struct carpstats); 595 596 if (zflag) 597 memset(&zerostat, 0, len); 598 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len, 599 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 600 warn("sysctl: net.inet.carp.stats"); 601 return; 602 } 603 604 printf("%s:\n", name); 605 606 #define p(f, m) if (carpstat.f || sflag <= 1) \ 607 printf(m, (uintmax_t)carpstat.f, plural((int)carpstat.f)) 608 #define p2(f, m) if (carpstat.f || sflag <= 1) \ 609 printf(m, (uintmax_t)carpstat.f) 610 611 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n"); 612 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n"); 613 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n"); 614 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n"); 615 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n"); 616 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n"); 617 p2(carps_badlen, "\t\t%ju discarded because packet too short\n"); 618 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n"); 619 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n"); 620 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n"); 621 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n"); 622 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n"); 623 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n"); 624 #if notyet 625 p(carps_ostates, "\t\t%s state update%s sent\n"); 626 #endif 627 #undef p 628 #undef p2 629 } 630 631 /* 632 * Dump IP statistics structure. 633 */ 634 void 635 ip_stats(u_long off __unused, const char *name, int af1 __unused) 636 { 637 struct ip_stats ipstat, *stattmp; 638 struct ip_stats zerostat[SMP_MAXCPU]; 639 size_t len = sizeof(struct ip_stats) * SMP_MAXCPU; 640 int cpucnt; 641 642 if (zflag) 643 memset(zerostat, 0, len); 644 if ((stattmp = malloc(len)) == NULL) { 645 return; 646 } else { 647 if (sysctlbyname("net.inet.ip.stats", stattmp, &len, 648 zflag ? zerostat : NULL, zflag ? len : 0) < 0) { 649 warn("sysctl: net.inet.ip.stats"); 650 free(stattmp); 651 return; 652 } else { 653 if ((stattmp = realloc(stattmp, len)) == NULL) { 654 warn("ip_stats"); 655 return; 656 } 657 } 658 } 659 cpucnt = len / sizeof(struct ip_stats); 660 ip_stats_agg(stattmp, &ipstat, cpucnt); 661 662 printf("%s:\n", name); 663 664 #define p(f, m) if (ipstat.f || sflag <= 1) \ 665 printf(m, ipstat.f, plural(ipstat.f)) 666 #define p1a(f, m) if (ipstat.f || sflag <= 1) \ 667 printf(m, ipstat.f) 668 669 p(ips_total, "\t%lu total packet%s received\n"); 670 p(ips_badsum, "\t%lu bad header checksum%s\n"); 671 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n"); 672 p1a(ips_tooshort, "\t%lu with data size < data length\n"); 673 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n"); 674 p1a(ips_badhlen, "\t%lu with header length < data size\n"); 675 p1a(ips_badlen, "\t%lu with data length < header length\n"); 676 p1a(ips_badoptions, "\t%lu with bad options\n"); 677 p1a(ips_badvers, "\t%lu with incorrect version number\n"); 678 p(ips_fragments, "\t%lu fragment%s received\n"); 679 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n"); 680 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n"); 681 p(ips_reassembled, "\t%lu packet%s reassembled ok\n"); 682 p(ips_delivered, "\t%lu packet%s for this host\n"); 683 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n"); 684 p(ips_forward, "\t%lu packet%s forwarded"); 685 p(ips_fastforward, " (%lu packet%s fast forwarded)"); 686 if (ipstat.ips_forward || sflag <= 1) 687 putchar('\n'); 688 p(ips_cantforward, "\t%lu packet%s not forwardable\n"); 689 p(ips_notmember, 690 "\t%lu packet%s received for unknown multicast group\n"); 691 p(ips_redirectsent, "\t%lu redirect%s sent\n"); 692 p(ips_localout, "\t%lu packet%s sent from this host\n"); 693 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n"); 694 p(ips_odropped, 695 "\t%lu output packet%s dropped due to no bufs, etc.\n"); 696 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n"); 697 p(ips_fragmented, "\t%lu output datagram%s fragmented\n"); 698 p(ips_ofragments, "\t%lu fragment%s created\n"); 699 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n"); 700 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n"); 701 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n"); 702 free(stattmp); 703 #undef p 704 #undef p1a 705 } 706 707 static const char *icmpnames[] = { 708 "echo reply", 709 "#1", 710 "#2", 711 "destination unreachable", 712 "source quench", 713 "routing redirect", 714 "#6", 715 "#7", 716 "echo", 717 "router advertisement", 718 "router solicitation", 719 "time exceeded", 720 "parameter problem", 721 "time stamp", 722 "time stamp reply", 723 "information request", 724 "information request reply", 725 "address mask request", 726 "address mask reply", 727 }; 728 729 /* 730 * Dump ICMP statistics. 731 */ 732 void 733 icmp_stats(u_long off __unused, const char *name, int af1 __unused) 734 { 735 struct icmpstat icmpstat, zerostat; 736 int i, first; 737 int mib[4]; /* CTL_NET + PF_INET + IPPROTO_ICMP + req */ 738 size_t len; 739 740 mib[0] = CTL_NET; 741 mib[1] = PF_INET; 742 mib[2] = IPPROTO_ICMP; 743 mib[3] = ICMPCTL_STATS; 744 745 len = sizeof icmpstat; 746 if (zflag) 747 memset(&zerostat, 0, len); 748 if (sysctl(mib, 4, &icmpstat, &len, 749 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 750 warn("sysctl: net.inet.icmp.stats"); 751 return; 752 } 753 754 printf("%s:\n", name); 755 756 #define p(f, m) if (icmpstat.f || sflag <= 1) \ 757 printf(m, icmpstat.f, plural(icmpstat.f)) 758 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \ 759 printf(m, icmpstat.f) 760 #define p2(f, m) if (icmpstat.f || sflag <= 1) \ 761 printf(m, icmpstat.f, plurales(icmpstat.f)) 762 763 p(icps_error, "\t%lu call%s to icmp_error\n"); 764 p(icps_oldicmp, 765 "\t%lu error%s not generated 'cuz old message was icmp\n"); 766 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 767 if (icmpstat.icps_outhist[i] != 0) { 768 if (first) { 769 printf("\tOutput histogram:\n"); 770 first = 0; 771 } 772 printf("\t\t%s: %lu\n", icmpnames[i], 773 icmpstat.icps_outhist[i]); 774 } 775 p(icps_badcode, "\t%lu message%s with bad code fields\n"); 776 p(icps_tooshort, "\t%lu message%s < minimum length\n"); 777 p(icps_checksum, "\t%lu bad checksum%s\n"); 778 p(icps_badlen, "\t%lu message%s with bad length\n"); 779 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n"); 780 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n"); 781 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) 782 if (icmpstat.icps_inhist[i] != 0) { 783 if (first) { 784 printf("\tInput histogram:\n"); 785 first = 0; 786 } 787 printf("\t\t%s: %lu\n", icmpnames[i], 788 icmpstat.icps_inhist[i]); 789 } 790 p(icps_reflect, "\t%lu message response%s generated\n"); 791 p2(icps_badaddr, "\t%lu invalid return address%s\n"); 792 p(icps_noroute, "\t%lu no return route%s\n"); 793 #undef p 794 #undef p1a 795 #undef p2 796 mib[3] = ICMPCTL_MASKREPL; 797 len = sizeof i; 798 if (sysctl(mib, 4, &i, &len, NULL, 0) < 0) 799 return; 800 printf("\tICMP address mask responses are %sabled\n", 801 i ? "en" : "dis"); 802 } 803 804 /* 805 * Dump IGMP statistics structure. 806 */ 807 void 808 igmp_stats(u_long off __unused, const char *name, int af1 __unused) 809 { 810 struct igmpstat igmpstat, zerostat; 811 size_t len = sizeof igmpstat; 812 813 if (zflag) 814 memset(&zerostat, 0, len); 815 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len, 816 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 817 warn("sysctl: net.inet.igmp.stats"); 818 return; 819 } 820 821 printf("%s:\n", name); 822 823 #define p(f, m) if (igmpstat.f || sflag <= 1) \ 824 printf(m, igmpstat.f, plural(igmpstat.f)) 825 #define py(f, m) if (igmpstat.f || sflag <= 1) \ 826 printf(m, igmpstat.f, igmpstat.f != 1 ? "ies" : "y") 827 p(igps_rcv_total, "\t%u message%s received\n"); 828 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n"); 829 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n"); 830 py(igps_rcv_queries, "\t%u membership quer%s received\n"); 831 py(igps_rcv_badqueries, "\t%u membership quer%s received with invalid field(s)\n"); 832 p(igps_rcv_reports, "\t%u membership report%s received\n"); 833 p(igps_rcv_badreports, "\t%u membership report%s received with invalid field(s)\n"); 834 p(igps_rcv_ourreports, "\t%u membership report%s received for groups to which we belong\n"); 835 p(igps_snd_reports, "\t%u membership report%s sent\n"); 836 #undef p 837 #undef py 838 } 839 840 /* 841 * Dump PIM statistics structure. 842 */ 843 void 844 pim_stats(u_long off __unused, const char *name, int af1 __unused) 845 { 846 struct pimstat pimstat, zerostat; 847 size_t len = sizeof pimstat; 848 849 if (zflag) 850 memset(&zerostat, 0, len); 851 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len, 852 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { 853 if (errno != ENOENT) 854 warn("sysctl: net.inet.pim.stats"); 855 return; 856 } 857 858 printf("%s:\n", name); 859 860 #define p(f, m) if (pimstat.f || sflag <= 1) \ 861 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f)) 862 #define py(f, m) if (pimstat.f || sflag <= 1) \ 863 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y") 864 p(pims_rcv_total_msgs, "\t%ju message%s received\n"); 865 p(pims_rcv_total_bytes, "\t%ju byte%s received\n"); 866 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n"); 867 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n"); 868 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n"); 869 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n"); 870 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n"); 871 p(pims_rcv_registers_wrongiif, "\t%ju data register message%s received on wrong iif\n"); 872 p(pims_rcv_badregisters, "\t%ju bad register%s received\n"); 873 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n"); 874 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n"); 875 #undef p 876 #undef py 877 } 878 879 /* 880 * Pretty print an Internet address (net address + port). 881 */ 882 void 883 inetprint(struct in_addr *in, int port, const char *proto, int num_port) 884 { 885 struct servent *sp = NULL; 886 char line[80], *cp; 887 int width; 888 889 if (Wflag) 890 sprintf(line, "%s.", inetname(in)); 891 else 892 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in)); 893 cp = strchr(line, '\0'); 894 if (!num_port && port) 895 sp = getservbyport((int)port, proto); 896 if (sp || port == 0) 897 sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 898 else 899 sprintf(cp, "%d ", ntohs((u_short)port)); 900 width = (Aflag && !Wflag) ? 17 : 21; 901 if (Wflag) 902 printf("%-*s ", width, line); 903 else 904 printf("%-*.*s ", width, width, line); 905 } 906 907 /* 908 * Construct an Internet address representation. 909 * If numeric_addr has been supplied, give 910 * numeric value, otherwise try for symbolic name. 911 */ 912 char * 913 inetname(struct in_addr *inp) 914 { 915 char *cp; 916 static char line[MAXHOSTNAMELEN]; 917 struct hostent *hp; 918 struct netent *np; 919 920 cp = NULL; 921 if (!numeric_addr && inp->s_addr != INADDR_ANY) { 922 int net = inet_netof(*inp); 923 int lna = inet_lnaof(*inp); 924 925 if (lna == INADDR_ANY) { 926 np = getnetbyaddr(net, AF_INET); 927 if (np) 928 cp = np->n_name; 929 } 930 if (cp == NULL) { 931 hp = gethostbyaddr(inp, sizeof (*inp), AF_INET); 932 if (hp) { 933 cp = hp->h_name; 934 trimdomain(cp, strlen(cp)); 935 } 936 } 937 } 938 if (inp->s_addr == INADDR_ANY) 939 strcpy(line, "*"); 940 else if (cp) { 941 strncpy(line, cp, sizeof(line) - 1); 942 line[sizeof(line) - 1] = '\0'; 943 } else { 944 inp->s_addr = ntohl(inp->s_addr); 945 #define C(x) ((u_int)((x) & 0xff)) 946 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 947 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 948 } 949 return (line); 950 } 951